? debug_print_backtrace_as_string.diff.txt
? debug_print_backtrace_ret_string.diff.txt
? zend_builtin_functions_orig.c
Index: zend_builtin_functions.c
===================================================================
RCS file: /repository/ZendEngine2/zend_builtin_functions.c,v
retrieving revision 1.226
diff -u -r1.226 zend_builtin_functions.c
--- zend_builtin_functions.c	14 Mar 2004 22:40:25 -0000	1.226
+++ zend_builtin_functions.c	18 Mar 2004 22:55:34 -0000
@@ -1418,7 +1418,7 @@
 	}
 }
 
-/* {{{ proto void debug_print_backtrace(void) */
+/* {{{ proto mixed debug_print_backtrace([bool return_as_string]) */
 ZEND_FUNCTION(debug_print_backtrace)
 {
 	zend_execute_data *ptr;
@@ -1434,11 +1434,14 @@
 	int arg_stack_consistent = 0;
 	int frames_on_stack = 0;
 	int indent = 0;
+	zend_bool return_as_string = 0;
 
-	if (ZEND_NUM_ARGS()) {
-		ZEND_WRONG_PARAM_COUNT();
+	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|b", &return_as_string)) {
+		RETURN_FALSE;
+	} 
+	if (return_as_string) {
+		php_start_ob_buffer (NULL, 0, 1 TSRMLS_CC);
 	}
-
 	while (--args >= EG(argument_stack).elements) {
 		if (*args--) {
 			break;
@@ -1459,8 +1462,6 @@
 	cur_arg_pos -= 2;
 	frames_on_stack--;
 
-	array_init(return_value);
-
 	while (ptr) {
 		if (ptr->op_array) {
 			filename = ptr->op_array->filename;
@@ -1540,6 +1541,12 @@
 		ptr = ptr->prev_execute_data;
 		++indent;
 	}
+        if (return_as_string) {
+		php_ob_get_buffer(return_value TSRMLS_CC);
+		php_end_ob_buffer(0, 0 TSRMLS_CC);
+	} else {
+		RETURN_TRUE;
+	}
 }
 
 /* }}} */